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Shunt:BMW SBOX
Caution
Working with high voltage is dangerous. Always follow local laws and regulations regarding high voltage work. If you are unsure about the rules in your country, consult a licensed electrician for more information.
Preface, the entire Battery-Emulator project sets out to achieve safe re-use of EV batteries. By building your own battery, you will be taking larger risks. Cell balancing wire taps, shunts, busbar connections, BMS integration, temperature monitoring, fuses, contactors, interlocks, etc. all will have to be implemented by yourself instead of using a pre-made product. As with all things custom, there are higher risks of human error. The Battery-Emulator also sets out to only emulate High Voltage protocols, so while most tinkerers might be familiar with 48V DIY batteries, building a 96S 400VDC battery is an entirely different beast that can be lethal. Take extra precaution when working on a custom DIY HV battery, you have been warned.
BMW S-BOX is Safety box, which includes precharge contactors and has voltage and curren probes. S-BOX can be used on DIY HV Batteries.
S-BOX can message id's are: 0x100, 0x200, 0x210, 0x220, 0x300. When using shared can bus, be aware that those ID's are not used by another devices on the same can bus.
Adjust voltage limit and relay timers from BMW-SBOX.h